CN111620452A - Three-phase FeC reaction device for high-concentration coking wastewater treatment - Google Patents
Three-phase FeC reaction device for high-concentration coking wastewater treatment Download PDFInfo
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- CN111620452A CN111620452A CN202010578049.0A CN202010578049A CN111620452A CN 111620452 A CN111620452 A CN 111620452A CN 202010578049 A CN202010578049 A CN 202010578049A CN 111620452 A CN111620452 A CN 111620452A
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- China
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- fec
- coking wastewater
- tower body
- reaction device
- wastewater treatment
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 43
- 238000004939 coking Methods 0.000 title claims abstract description 31
- 238000004065 wastewater treatment Methods 0.000 title claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000000945 filler Substances 0.000 claims abstract description 26
- 239000007921 spray Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000005273 aeration Methods 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims description 18
- 238000007667 floating Methods 0.000 claims description 11
- 241000272168 Laridae Species 0.000 claims description 6
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 abstract description 25
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012071 phase Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000036632 reaction speed Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009730 filament winding Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
- C02F2101/322—Volatile compounds, e.g. benzene
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a three-phase FeC reaction device for treating high-concentration coking wastewater, which comprises a tower body, wherein a spray water distributor is arranged at the top of the tower body and is connected with a spray water inlet, at least one layer of float valve tower tray is arranged below the spray water distributor in the tower body, FeC filler is arranged on the float valve tower tray, an air inlet hole is arranged below the lowermost float valve tower tray and is connected with an aeration fan, an airflow redistributor is also arranged on the air inlet hole, a gas discharge port and a liquid discharge pipe are respectively arranged at the top and the bottom of the tower body, and a dehydrator is arranged on the gas discharge port. The three-phase FeC reaction device for treating the high-concentration coking wastewater is reasonable in design, small in occupied area, free of caking of the filler, high in reaction efficiency, good in treatment effect, corrosion-resistant and strong in durability.
Description
Technical Field
The invention relates to a three-phase FeC reaction device for treating high-concentration coking wastewater, belonging to the field of wastewater treatment equipment.
Background
In the treatment of high-concentration coking wastewater, the key point is to break the benzene ring and the chromophoric substance of the benzene pollutants in the coking wastewater.
In recent years, FeC reaction tanks are adopted at home and abroad, and FeC reaction can efficiently break benzene rings and color development substances, so that the BOD/COD value in the coking wastewater is remarkably improved while the coking wastewater is decolorized, thereby providing a prerequisite for successfully treating the high-concentration coking wastewater.
However, the common FeC reaction tank for treating the coking wastewater has the defects of poor corrosion resistance (FeC reaction is carried out under an acidic condition and has an electrolytic corrosion effect), immersion reaction, limited reaction speed, viscous and easily precipitated coking wastewater reaction products, difficulty in timely removing precipitates, easiness in blocking and hardening of FeC fillers and difficulty in replacing the FeC fillers.
Therefore, in the coking wastewater treatment, the design of a common FeC reaction tank needs to be overturned, and a new FeC reactor is created.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide a three-phase FeC reaction device for treating high-concentration coking wastewater, which has the advantages of small occupied area, no caking of filler, high reaction efficiency and good treatment effect.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a three-phase FeC reaction unit for high concentration coking wastewater treatment, includes the tower body, its characterized in that: the top of the tower body is provided with a spraying water distributor, the spraying water distributor is connected with a spraying water inlet, at least one layer of floating valve tower tray is arranged below the spraying water distributor in the tower body, FeC filler is arranged on the floating valve tower tray, an air inlet hole is arranged below the lowest layer of floating valve tower tray and is connected with an aeration fan, an air flow redistributor is further arranged on the air inlet hole, a gas discharge port and a liquid discharge pipe are respectively arranged at the top and the bottom of the tower body, and a dehydrator is arranged on the gas discharge port.
In the three-phase tower, coking wastewater is distributed by a spray water distributor under the action of a pump, turbulent flow is sprayed on FeC filler, gas-phase air rapidly impacts on the FeC filler from the tower bottom under the action of an aeration fan, three phases are subjected to turbulent flow violent reaction on a floating valve tray, benzene rings and chromophoric substances in the coking wastewater are broken under the double actions of micro-electrolysis of the FeC filler and oxidation of air, the BOD/COD value is obviously improved, and the wastewater descends layer by layer along with the floating valve tray while descending. After reaching the reaction depth, the reaction effluent flows out from the bottom of the tower.
In a common FeC reaction tank, wastewater flows through a FeC filler in a advection manner, and reaction products are easy to precipitate on the filler to block micropores of the filler, so that the filler is caked and hardened to lose effectiveness. The reaction tower has the functions of spraying and aerating, liquid-phase wastewater is sprayed on the solid-phase filler in a turbulent manner under the action of a pump pressure, gas-phase air rapidly impacts the solid-phase filler from the tower bottom under the action of an aeration fan, and reaction products cannot be precipitated on the filler under the impact of the three-phase turbulent flow, so that the filler is not easy to agglomerate and harden.
The common FeC reaction tank adopts an immersion reaction, and the reaction speed is limited.
This technical equipment does not adopt the reaction of soaking of pond formula, and adopts the spray column structure, and coking wastewater is under the pressure of pump, and the quick atomizing sprays on FeC packs, and the contact is more abundant, and under the effect of pump pressure and gravity, waste water descends along tower tray successive layer, and the limit descends the limit and reacts. The reaction speed and the reaction depth are improved.
In addition, the oxidation effect of aeration ensures that benzene rings and color development substances broken by FeC reaction in the coking wastewater can be oxidized in time, and reverse reaction is not easy to generate, so that the depth of FeC reaction can be maintained and enhanced.
Secondly, the traditional FeC method is a flat-paved pool body, and the three-phase FeC reaction tower is a vertical tower body, and the area is changed by using the height, so the occupied area is less than that of the traditional FeC pool.
In the scheme, the method comprises the following steps: the dehydrator comprises a baffling dehydrator and a rotational flow dehydrator which are sequentially installed from bottom to top. The dehydrator is arranged, exhaust gas has two-stage dehydration function of cyclone dehydration after baffling dehydration, and waste water cannot leak to cause pollution.
In the scheme, the method comprises the following steps: the spraying water distributor adopts a gull wing-shaped wire winding pipe water distributor. The water distributor configured by the device completely abandons the design of the traditional water distributor and adopts a gull-wing-shaped filament winding pipe structure (the cross section of the filament is gull-wing-shaped). The gull wing shape has a bionic cross-sectional structure similar to a gull wing, has the characteristic of small fluid resistance, is more favorable for the flow of water, and ensures that the pressure drop of the water is small, thereby greatly reducing the energy consumption of the water pump.
In the scheme, the method comprises the following steps: the spraying water distributor is made of titanium alloy. The equipment adopts an innovative titanium alloy water distributor, and has high material strength and corrosion resistance.
In the scheme, the method comprises the following steps: the spraying water distributor is arranged in the tower body through an elastic damper. The structural mechanics redesign is adopted, and the elastic damper with elastic damping is adopted to discharge the water pressure reaction force applied to the water distributor, so that the water distributor is not easy to fatigue failure. The problem of easy tired of equipment internals has been solved.
In the scheme, the method comprises the following steps: and a liquid redistributor for avoiding water wall flow is arranged above each stage of floating valve tray. The adoption of the float valve tray redistributor prevents the wall flow and short circuit of the wastewater, so that the wastewater at each point can be fully treated.
In the scheme, the method comprises the following steps: the lower part of the liquid discharge pipe is bent into a U shape to form a water seal structure.
In the scheme, the method comprises the following steps: and automatic discharge manholes are arranged on the tower body corresponding to each stage of float valve tower plate and the spray water distributor. In a common FeC reaction tank, FeC filler is laid at the bottom of the tank, a large amount of cleaning work is needed for replacing the filler, and the working environment is severe during cleaning.
When the invention is used for discharging, the spray water and the spray hole can be opened, thus solving the problem that the FeC filler is not easy to replace. When the filler is unloaded, the filler can be automatically flushed and unloaded out of the tower body by pressure water only by opening the discharge hole and opening the spray pipe.
In the scheme, the method comprises the following steps: the tower body is filled with low-calcium magnesium rubber. Because the low-calcium magnesium rubber is not acid-resistant and non-conductive, and the low-calcium magnesium rubber is lined, the corrosion prevention problem of FeC reaction is solved, and the technical equipment can stably run for a long time in an acid environment and an electrolysis environment.
Has the advantages that: the three-phase FeC reaction device for treating the high-concentration coking wastewater, disclosed by the invention, has the advantages of reasonable design, small occupied area, no caking of the filler, high reaction efficiency, good treatment effect, corrosion resistance of equipment and strong durability.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention will be further illustrated by the following examples in conjunction with the accompanying drawings:
example 1
The invention discloses a three-phase FeC reaction device for treating high-concentration coking wastewater, which consists of a tower body 1, a spray water distributor 2, a float valve tray 3, FeC fillers 4, an aeration fan 5, an airflow redistributor 6, a baffling dehydrator 7, a rotational flow dehydrator 8, an elastic damper 9, an automatic discharging manhole 10, a liquid discharge pipe 11 and a liquid redistributor 12.
The tower body 1 is a vertical tower body, and the tower body 1 is fully lined with low-calcium magnesium rubber, so that the corrosion problem is solved. The top of tower body 1 is provided with sprays water-locator 2, sprays water-locator 2 and sprays the water inlet and link to each other, preferredly: the spray water distributor 2 adopts a titanium alloy gull wing-shaped wire winding pipe water distributor (the cross section of the titanium alloy wire is gull wing-shaped). The spraying water distributor 2 is arranged in the tower body 1 through an elastic damper 9.
At least one layer of floating valve tower tray 3 is arranged below the spraying water distributor in the tower body 1, two layers are drawn in the drawing, and the number of the tower tray layers is increased or decreased according to the concentration of the coking wastewater. FeC filler 4 is arranged on the float valve tray 3, and a liquid redistributor 12 for avoiding water wall flow is arranged above each stage of float valve tray 3. An automatic discharging manhole 10 is arranged on the tower body 1 corresponding to each stage of float valve tower plate 3 and the spraying water distributor 2.
An air inlet is arranged below the lowermost layer float valve tray 3 and is connected with an aeration fan 5, an airflow redistributor 6 is also arranged on the air inlet, and the airflow redistributor 6 is a porous plate. As shown in the figure, the tower body gradually inclines upwards from one end far away from the air inlet to one end close to the air inlet, one end far away from the air inlet is arranged in the middle of the tower body 1, and one end close to the air inlet is arranged on the inner wall of the tower body 1 above the air inlet. The tower body 1 is provided with a gas discharge port and a liquid discharge pipe 11 at the top and bottom thereof, respectively, and a dehydrator is installed on the gas discharge port. Preferably, the dehydrators comprise a baffling dehydrator 7 and a rotational flow dehydrator 8 which are sequentially arranged from bottom to top. The lower part of the liquid discharge pipe 11 is bent into a U shape to form a water seal structure.
The present invention is not limited to the above-described embodiments, and those skilled in the art will understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. The utility model provides a three-phase FeC reaction unit for high concentration coking wastewater treatment, includes the tower body, its characterized in that: the top of the tower body is provided with a spraying water distributor, the spraying water distributor is connected with a spraying water inlet, at least one layer of floating valve tower tray is arranged below the spraying water distributor in the tower body, FeC filler is arranged on the floating valve tower tray, an air inlet hole is arranged below the lowest layer of floating valve tower tray and is connected with an aeration fan, an air flow redistributor is further arranged on the air inlet hole, a gas discharge port and a liquid discharge pipe are respectively arranged at the top and the bottom of the tower body, and a dehydrator is arranged on the gas discharge port.
2. The three-phase FeC reaction device for high concentration coking wastewater treatment of claim 1, characterized in that: the dehydrator comprises a baffling dehydrator and a rotational flow dehydrator which are sequentially installed from bottom to top.
3. The three-phase FeC reaction device for high concentration coking wastewater treatment according to claim 1 or 2, characterized in that: the spraying water distributor adopts a gull wing-shaped wire winding pipe water distributor.
4. The three-phase FeC reaction device for high concentration coking wastewater treatment of claim 3, characterized in that: the spraying water distributor is made of titanium alloy.
5. The three-phase FeC reaction device for high concentration coking wastewater treatment of claim 3, characterized in that: the spraying water distributor is arranged in the tower body through an elastic damper.
6. The three-phase FeC reaction device for high concentration coking wastewater treatment of claim 3, characterized in that: and a liquid redistributor for avoiding water wall flow is arranged above each stage of floating valve tray.
7. The three-phase FeC reaction device for high concentration coking wastewater treatment of claim 6, characterized in that: the lower part of the liquid discharge pipe is bent into a U shape to form a water seal structure.
8. The three-phase FeC reaction device for high concentration coking wastewater treatment of claim 1, characterized in that: and automatic discharge manholes are arranged on the tower body corresponding to each stage of float valve tower plate and the spray water distributor.
9. The three-phase FeC reaction device for high concentration coking wastewater treatment of claim 1, characterized in that: the tower body is filled with low-calcium magnesium rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010578049.0A CN111620452A (en) | 2020-06-22 | 2020-06-22 | Three-phase FeC reaction device for high-concentration coking wastewater treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010578049.0A CN111620452A (en) | 2020-06-22 | 2020-06-22 | Three-phase FeC reaction device for high-concentration coking wastewater treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111620452A true CN111620452A (en) | 2020-09-04 |
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ID=72269604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010578049.0A Pending CN111620452A (en) | 2020-06-22 | 2020-06-22 | Three-phase FeC reaction device for high-concentration coking wastewater treatment |
Country Status (1)
| Country | Link |
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| CN (1) | CN111620452A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114195230A (en) * | 2021-11-23 | 2022-03-18 | 中车唐山机车车辆有限公司 | Urine wastewater treatment device and treatment method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201250119Y (en) * | 2008-03-25 | 2009-06-03 | 钟金松 | High-efficiency ammonia-nitrogen wastewater-stripping tower |
| CN206570067U (en) * | 2017-03-24 | 2017-10-20 | 黑龙江省康源环保科技有限公司 | One kind is without aeration Inner electrolysis technology pre-treating high concentration industrial wastewater device |
| CN207313202U (en) * | 2017-10-17 | 2018-05-04 | 河钢股份有限公司 | A kind of micro-electrolysis reaction tower with self-loopa defoaming function |
| CN208471626U (en) * | 2018-05-21 | 2019-02-05 | 大连世达特环保科技有限公司 | Catalysis and micro-electrolysis tower |
| CN212894129U (en) * | 2020-06-22 | 2021-04-06 | 重庆乐邦环保机电研究所有限公司 | Three-phase FeC reaction tower for treating high-concentration coking wastewater |
-
2020
- 2020-06-22 CN CN202010578049.0A patent/CN111620452A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201250119Y (en) * | 2008-03-25 | 2009-06-03 | 钟金松 | High-efficiency ammonia-nitrogen wastewater-stripping tower |
| CN206570067U (en) * | 2017-03-24 | 2017-10-20 | 黑龙江省康源环保科技有限公司 | One kind is without aeration Inner electrolysis technology pre-treating high concentration industrial wastewater device |
| CN207313202U (en) * | 2017-10-17 | 2018-05-04 | 河钢股份有限公司 | A kind of micro-electrolysis reaction tower with self-loopa defoaming function |
| CN208471626U (en) * | 2018-05-21 | 2019-02-05 | 大连世达特环保科技有限公司 | Catalysis and micro-electrolysis tower |
| CN212894129U (en) * | 2020-06-22 | 2021-04-06 | 重庆乐邦环保机电研究所有限公司 | Three-phase FeC reaction tower for treating high-concentration coking wastewater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114195230A (en) * | 2021-11-23 | 2022-03-18 | 中车唐山机车车辆有限公司 | Urine wastewater treatment device and treatment method |
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